http://unite.opera.com/this new technology allows many people to file share across the web without posting what you want to share over the web. you would also be able to acces your computer from any computer and play any media stored upon your pc... its amazing, they just released this bit of technology today.
not to mention you can now host your own web servers from your own computer.
check some of the other features out and you will be amazed on how advance it really is!!
i haven't personally used it yet.. but i will
post your opinions on this new way to file share